Hip & pelvis
Hip impingement
A deep pinch with sitting, squatting, or turning
What it means
Femoroacetabular impingement syndrome involves symptoms, exam signs, and relevant bone shape on imaging. A cam shape is extra prominence near the ball of the hip. Pincer morphology refers to greater coverage by the socket. Either shape can exist without symptoms. [1, 2]
What I check in the clinic
I ask which seat depth or squat position brings on the familiar pinch. Comparing a change in depth or stance gives us a starting point to work with and a way to see whether the range you need is changing.
What the evidence says about care
In UK FASHIoN, both groups improved and arthroscopy had a greater average improvement at 12 months in selected patients eligible for surgery. Individual options depend on exam findings, goals, and response to a trial of care. [3, 1]
Common questions
Why does a low car seat pinch when a regular chair feels fine?
I’d ask where the pinch starts and whether it comes on during the turn, the sit, or both. We can compare a different seat height or stance and see how it fits with the exam.
What should I notice on my next car trip if it felt better here?
Notice the part of getting in or out that usually makes you pause. We can compare how soon the pinch comes on or how much you have to change your movement.
My scan mentions a cam shape. Why is the other side fine?
A scan is one part of the picture. I’d compare what each hip does during the same task and how that fits with your symptoms and exam.
Why can I do a shallow squat but feel a pinch when I get closer to the floor?
Show me the range where the feeling begins. We can compare a small change in depth or position and use your response to choose what to look at next.
Does a scan finding mean I need an operation?
The scan is one part of the decision. Symptoms, exam findings, how much it limits you, and your goals help guide a discussion about rehabilitation and surgical options. [1]
What should I bring to an evaluation?
Bring one example of a movement or activity you want back, along with any relevant imaging or treatment notes you already have.